field trial

noun

1. a competition among sporting dogs under natural conditions in the field, in which the animals are judged on the basis of excellence of performance in hunting.
2. a trial of a new product or procedure to determine its efficiency or usefulness in actual performance.

noun

1. hunting a test of or contest between gun dogs to determine their proficiency and standard of training in retrieving or pointing
2. (often plural) a test to display performance, efficiency, or durability, as of a vehicle or invention